Document Detail

Clinical implications of preceding positive spikes in patients with benign partial epilepsy and febrile seizures.
MedLine Citation:
PMID:  22800933     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To clarify the clinical implications of the preceding positive spikes (PPSs) observed primarily in rolandic spikes, we analyzed PPSs in the rolandic and occipital spikes observed in the electroencephalograms (EEGs) of patients with two types of benign partial epilepsies (benign childhood epilepsy with centro-temporal spikes [BECT] and Panayiotopoulos syndrome [PS]) and febrile seizures (FS).
SUBJECTS AND METHODS: We identified patients from our outpatient EEG database that were seen between 2006 and 2008 that had BECT, PS, and FS with rolandic or occipital spikes. We generated an averaged spike for each patient from the rolandic and occipital spikes that were detected using an automatic spike detection and clustering system. We compared the presence rate of the averaged spikes with the PPS among the three groups (BECT vs. PS vs. FS) using sequential mapping.
RESULTS: We identified 25 BECT, 18 PS, and 15 FS patients with rolandic spikes. Fifteen BECT and nine PS patients exhibited a PPS in their averaged rolandic spikes, whereas only four FS patients did. Three of these four FS patients later developed afebrile seizures, and one of them was diagnosed as having PS. We analyzed eight PS and six FS patients with occipital spikes. Five PS patients exhibited a PPS in their averaged occipital spikes, whereas only one FS patient did. This FS patient later developed prolonged autonomic febrile seizures.
CONCLUSION: PPSs are observed not only in rolandic spikes associated with BECT that is related strictly to sylvian seizures, but also in rolandic and occipital spikes associated with PS. Although PPSs are rare in such spikes observed in FS, patients with FS and PPSs may have an increased risk of developing afebrile seizures or prolonged autonomic febrile seizures. Further studies are warranted to determine the diagnostic utility of PPSs as a marker of the future development of epilepsy when they are observed in FS patients.
Harumi Yoshinaga; Katsuhiro Kobayashi; Tomoyuki Akiyama; Takashi Shibata; Fumika Endoh; Yoko Ohtsuka
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-07-15
Journal Detail:
Title:  Brain & development     Volume:  35     ISSN:  1872-7131     ISO Abbreviation:  Brain Dev.     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-03-04     Completed Date:  2013-09-05     Revised Date:  2014-07-31    
Medline Journal Info:
Nlm Unique ID:  7909235     Medline TA:  Brain Dev     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  299-306     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 The Japanese Society of Child Neurology. Published by Elsevier B.V. All rights reserved.
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MeSH Terms
Brain Mapping*
Brain Waves / physiology*
Cerebral Cortex / physiopathology*
Child, Preschool
Epilepsies, Partial / complications,  diagnosis*
Epilepsy, Rolandic / complications,  diagnosis*
Retrospective Studies
Seizures, Febrile / diagnosis*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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